Creating better health care, education and housing for everyone is a simple idea, but ____ which is hard to put into practice.
—My sister failed the driving test and is in low spirits. —I’m sorry for her. —____________.
How long is it ________________ we last had a picnic together?
—What do you think of the concert? —I really enjoy it. I didn’t expect it was ____________ wonderful.
His best-known work that is ___________ all praise can be seen in the museum.
Europe has achieved more in controlling the AIDS virus than Asia in the past ten years, _________ the number of people infected with the virus is going up sharply.